Confused about OPT multiple opportunities

Hi guys, I am totally yanking off my hair! I am hoping someone can get me out of this deranged mess! Lol! Alittle over reacting about this situation!. I would seriously like to know if I am eligible for another OPT, since I have completed one. I did my OPT after my completion of a certificate couse in UC berkerly. And I will be doing my masters soon in washington university. So I was wondering if it will be affected?